Results 71 to 80 of about 275,126 (317)

Fail-safe design of integral metallic aircraft structures reinforced by bonded crack retarders [PDF]

open access: yes, 2009
This paper presents an investigation on the effectiveness of crack growth retarders bonded to integral metallic structures. The study was performed by both numerical modelling and experimental tests.
Irving, Phil E.   +9 more
core   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

The social context of crack using careers : an ethnographic study in London [PDF]

open access: yes
Despite over two decades of crack use in the UK, there is little UK-focused research and little understanding of crack careers, the social context of crack use and health-related risks.
Briggs, Daniel
core   +1 more source

X-ray computerized tomography for characterization of pick-up destruction and pick-up parameter optimization of tomato root lumps

open access: yesSpanish Journal of Agricultural Research, 2019
This study was aimed to find the causes of pick-up destruction of tomato root lumps using X-ray microcomputed tomography, and to identify the pick-up parameters of low root lump destruction.
Hanping Mao   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Influence of grain structure and slip planarity on fatigue crack growth in low alloying artificially aged 2xxx aluminium alloys [PDF]

open access: yes, 2007
The fatigue crack growth behaviour under constant amplitude loading of three low alloying artificially aged 2xxx aluminium alloys with distinct microstructures is analysed. Fatigue crack growth tests show a correlation between fatigue performance and the
Starink, M.J.   +3 more
core   +1 more source

O crack em um cenário empedrado: articulações entre os discursos jurídico, médico e midiático

open access: yesPsicologia & Sociedade, 2014
O artigo aborda o surgimento do crack nas metrópoles brasileiras, o grande internamento de seus usuários na última década e a leitura midiática sobre o tema.
Mateus Freitas Cunda   +1 more
doaj   +1 more source

Database Cracking. [PDF]

open access: yes, 2007
Database indices provide a non-discriminative navigational infrastructure to localize tuples of interest. Their maintenance cost is taken during database updates. In this paper, we study the complementary approach, addressing index maintenance as part of query processing using continuous physical reorganization, i.e., cracking the database into ...
S. Idreos (Stratos)   +2 more
openaire   +2 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Chloride Transport in Cracked Concrete Subjected to Wetting – Drying Cycles: Numerical Simulations and Measurements on Bridges Exposed to De-Icing Salts

open access: yesFrontiers in Built Environment, 2020
Although many models for service life predictions have been developed, their application to existing bridges is still not at a satisfactory level. The here presented coupled three-dimensional chemo-hygro-thermo-mechanical (CHTM) model can realistically ...
Marija Kušter Marić   +5 more
doaj   +1 more source

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